Home / 100,856.18-151,080.42-50,866.76

Finding the Fourth Proportional to 100,856.18, 151,080.42 and 50,866.76

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Solution

The fourth proportional to 100,856.18, 151,080.42 and 50,866.76 is: 76,197.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,856.18 : 151,080.42 = 50,866.76 : x
  2. Step 2: Convert to fraction form
    100,856.18/151,080.42 = 50,866.76/x
  3. Step 3: Cross multiply
    100,856.18x = 151,080.42 × 50,866.76
  4. Step 4: Simplify right side
    100,856.18x = 7,684,971,464.84
  5. Step 5: Solve for x
    x = 7,684,971,464.84/100,856.18
  6. Step 6: Final answer
    x = 76,197.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.